Merge tag 'nova-next-v6.17-2025-07-18' of https://gitlab.freedesktop.org/drm/nova into drm-next

Nova changes for v6.17

DMA:

  - Merge topic/dma-features-2025-06-23 from alloc tree.

    - Clarify wording and be consistent in 'coherent' nomenclature.

    - Convert the read!() / write!() macros to return a Result.

    - Add as_slice() / write() methods in CoherentAllocation.

    - Fix doc-comment of dma_handle().

    - Expose count() and size() in CoherentAllocation and add the
      corresponding type invariants.

    - Implement CoherentAllocation::dma_handle_with_offset().

nova-core:

  - Various register!() macro improvements.

  - Custom Sleep / Delay helpers (until the actual abstractions land).

  - Add DMA object abstraction.

  - VBIOS

    - Image parser / iterator.

    - PMU table look up in FWSEC.

    - FWSEC ucode extraction.

  - Register sysmem flush page.

  - Falcon

    - Generic falcon boot code and HAL (Ampere).

    - GSP / SEC2 specific code.

  - FWSEC-FRTS

    - Compute layout of FRTS region (FbLayout and HAL).

    - Load into GSP falcon and execute.

  - Add Documentation for VBIOS layout, Devinit process, Fwsec operation
    and layout, Falcon basics.

  - Update and annotate TODO list.

  - Add Alexandre Courbot as co-maintainer.

Rust:

  - Make ETIMEDOUT error available.

  - Add size constants up to SZ_2G.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://lore.kernel.org/r/DBFKLDMUGZD9.Z93GN2N5B0FI@kernel.org